Self-Determined Reciprocal Recommender System with Strong Privacy Guarantees
Research output: Contribution to book/Conference proceedings/Anthology/Report › Conference contribution › Contributed › peer-review
Contributors
Abstract
Recommender systems are widely used. Usually, recommender systems are based on a centralized client-server architecture. However, this approach implies drawbacks regarding the privacy of users. In this paper, we propose a distributed reciprocal recommender system with strong, self-determined privacy guarantees, i.e., local differential privacy. More precisely, users randomize their profiles locally and exchange them via a peer-to-peer network. Recommendations are then computed and ranked locally by estimating similarities between profiles. We evaluate recommendation accuracy of a job recommender system and demonstrate that our method provides acceptable utility under strong privacy requirements.
Details
| Original language | English |
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| Title of host publication | 16th International Conference on Availability, Reliability and Security, ARES 2021 |
| ISBN (electronic) | 9781450390514 |
| Publication status | Published - Aug 2021 |
| Peer-reviewed | Yes |
| Externally published | Yes |
External IDs
| Scopus | 85113254546 |
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